Adverbs in English

In English, adverbs of manner (answering the question how?) are often derived from adjectives by using the suffix -ly. The -ly is a common, but not reliable, marker of a word being an adverb, since many adjectives also end in -ly. In some cases, the suffix -wise may be used to derive adverbs from typical nouns. Historically, -wise competed with a related form -ways and won out against it. In a few words, like sideways, -ways survives; words like clockwise show the transition. Again, it is not a foolproof indicator of a word being an adverb. There are a number of other suffixes in English that derive adverbs from other word classes, and there are also many adverbs that are not morphologically indicated at all. Comparative Adverbs include more, most, least, and less.

Formally, adverbs in English are inflected in terms of comparison, just like adjectives. The comparative and superlative forms of adverbs are generated by adding -er and -est. Many adverbs are also periphrastically indicated by the use of more or most. Adverbs also take comparisons with as ... as, less, and least. The usual form pertaining to adjectives or adverbs is called the positive.